In other words, it believes that criminals may have gained access to customers’ credit and debit card information.

While the investigation continues, FireKeepers says it has installed new point of sales systems (because like, yeah, you’re totally going to trust it now, right?) and has informed the authorities.

So, if you have ever used your credit card at the FireKeepers casino, hotel, shops or restaurants, you might be wise to keep an eye on your statements to see if there are any unexpected transactions.

Unfortunately, FireKeepers’ advisory does not give any indication of an at-risk date range, so one has to assume that customers from as far back as August 2009 when the casino opened could be at risk.

According to FireKeepers, if you used your card for an online payment via the company’s website you should not be impacted because a separate system is used for processing online orders. Furthermore, ATMs are also believed to be safe because they are connected to a different system.

About the author, Graham Cluley

Graham Cluley is a veteran of the anti-virus industry having worked for a number of security companies since the early 1990s when he wrote the first ever version of Dr Solomon's Anti-Virus Toolkit for Windows. Now an independent security analyst, he regularly makes media appearances and is an international public speaker on the topic of computer security, hackers, and online privacy.

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